Two distinct bands appear in a single lane at the completion of an SDS-PAGE analysis of an unknown protein. Select one: a. These bands represent two subunits of a homodimer. b. Each band represents a different sized subunit of a multimeric protein. c. Each band represents a protein subunit with different charge to mass ratio. d. These bands represent two subunits of a heterodimer. e. These bands represent two separate subunits of identical size.

Answers

Answer 1

Answer:

b. Each band represents a different-sized subunit of a multimeric protein.

Explanation:

SDS-PAGE analysis allows the separation and discrimination of proteins according to their molecular weight. The technique separates proteins in an electromagnetic field.

The SDS-PAGE technique makes proteins move in solid support -gel- by the action of the electric field. The distance reached by each protein is proportional to their molecular weight. The protein separation from a mixture results in bands that reflect their size.

SDS is a detergent that denaturalizes the protein and sets a relation charge size, such as that the motion of the protein in the gel is proportional to its weight. The bigger the protein is, the stronger interaction with the polyacrylamide gel there will be.  The speed of displacement in the electromagnetic field is inversely proportional to the protein size.


Related Questions

A que se llama tierra de usufructo???
Ayuda

Answers

Answer:El usufructo (del latín: usus fructus, «uso del fruto»)1​ es un derecho real de goce o disfrute de una cosa ajena. El Código Civil de España define este derecho en su artículo 467 como "el derecho a disfrutar los bienes ajenos con la obligación de conservar su forma y sustancia, a no ser que el título de su constitución o la ley autoricen otra cosa" .2​ Por consiguiente, la persona titular del usufructo es mero tenedor respecto de la cosa pero no su dueño ni poseedor. Tiene la mera tenencia sobre la cosa, pero no la propiedad. Puede utilizarla y disfrutarla, es decir, obtener sus frutos o rendimientos, sean en especie o dinerarios, pero no puede disponer libremente de ella por no ostentar el derecho de propiedad sobre aquella. Es la razón de que no pueda enajenarla ni disminuir su valor sin el consentimiento del titular de la propiedad.

Explanation:ESO

Describe the mutation that confers resistance to infection to a major strain of HIV.

Answers

Answer:

BIKTARVY® is indicated as a complete regimen for the treatment of HIV-1 infection in adult and pediatric patients weighing ≥25 kg who have no antiretroviral (ARV) treatment history or to replace the current ARV regimen in those who are virologically suppressed (HIV-1 RNA <50 copies per mL) on a stable ARV regimen with no history of treatment failure and no known resistance to any component of BIKTARVY.

What are the weather conditions in an area of low pressure?


Dry weather

Sunny weather

Cloudy with precipitation

Answers

Answer:  Cloudy with Precipitation

Explanation: Winds blow towards the low pressure, and the air rises in the atmosphere where they meet. As the air rises, the water vapor within it condenses, forming clouds and often precipitation.

How would you classify this organism based on the dichotomous key?
Select one:

A. Kingdom Plantae

B. Viruses

C. Kingdom Eubacteria

D. Kingdom Protista

Answers

Answer:

Explanation:

3a b is your answer

Receptors: A) Specialized chemicals that receive information B) Specialized heart cells that receive information C) Specialized hormones that receive information D) specialized nerve cells that receive information

Answers

Answer: Option D.

specialized nerve cells that receive information

Explanation:

Receptors is a protein that is found in target cells and it also bind to a molecule called ligands which can be inorganic substance and the kitchen hand also can bind to leave hand binding sites. These receives chemical signals or information.

The graph below shows the averaged sunspots from 1610 to 2007. The graph shows sunspot number on the y axis and years 1600, 1650, 1700, 1750, 1800, 1850, 1900, 1950, and 2000 on the x axis. The graph rises and falls in a cyclic order in gaps of approximately 10 years. The number of sunspots observed in 1610 was 40, in 1650 it was 5, in 1700 it was 10, in 1750 it was 90 and the number of sunspots in 1800 was 50. The number of sunspots observed in 1850 was 130 and the number of sunspots in 1900 was 10. The number of sunspots observed in 1950 was 150 and the number of sunspots observed in 2000 was 30. Based on the graph, which of these conclusions is correct? Some of the previously warm regions became colder from 1650 to 1700. Some of the previously cold regions became warmer from 1600 to 1700. Some of the previously warm regions became warmer from 1610 to 1700. Some of the previously cold regions became colder from 1900 to 1950.

Answers

Answer: Some of the previously warm regions became colder from 1650 to 1700

Explanation: I got it right on the test

According to the graph, the number of sunspots decreased from 1650 to 1700. That means the correct option is A.

What is a sunspot?

The areas of the sun where the magnetic field of the sun is 2500 times more than the Earth. In these areas, the magnetic field is more than anywhere else on the surface of the sun.

Near the area of a sunspot, there is a small amount of energy output from the sun. UV rays from the sun also increase at a high sunspot activity. This increase in UV radiation causes dramatic effects on the atmosphere of the Earth.

The more number sunspots are observed, the more energy will be delivered to the earth. This increase in the energy delivered to the earth would result in an increase in the overall global temperature.

According to the graph, the number of sunspots observed decreased from 40 to 5 and increased slightly from 5 to 10 from 1610 to 1700. So, the statement says that some of the warm regions would become colder from 1650 to 1700.

Therefore, the correct option is A.

Read more about sunspots, here

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Which of the following statements is false?
Carbon dioxide has been used to produce sugars and many other molecules needed by the plants.
O Both plants responded to changes in light intensity in the same way.
O At most temperatures, both plants consumed carbon dioxide.
O Both plants responded to changes in temperature in the same way.

Answers

Answer:

carbon dioxide statement is false

Of the terrestrial planets, Earth and Venus are
Which phrase best completes the sentence?
O about the same size
O different in density
O similar to gas planets
O very different in size

Answers

Answer:

A. About the same size

Explanation:

Venus is often named as Earth's twin because both worlds share a similar size, surface composition and have an atmosphere with a complex weather system. Both planets have almost the same size and density.

Hope this helps!

Earth and Venus are about the same size. So, the correct option is (A).

What is Earth?

Earth is the third planet from the Sun and the only celestial object known to harbor life. Only Earth maintains liquid surface water in the Solar System. About 71% of Earth's surface is made up of ocean, which dwarfs Earth's polar ice caps, lakes, and rivers.

Earth consists of land, air, water and life where land consists of mountains, valleys and flat areas and air is composed of various gases, mainly nitrogen and oxygen. Water includes oceans, lakes, rivers, streams, rain, snow, and ice.

Venus is known as our sister planet because of the similarity in size, mass, density, and volume that both planets are believed to share a common origin at the same time from a condensed nebula about 4.5 billion years ago.

Thus, Earth and Venus are about the same size. So, the correct option is (A).

Learn more about Earth, here:

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Scientists have observed that the planets closest to the Sun orbit faster than the planets farther away from the Sun. What is responsible for this observation? (help fast)
A
the nuclear energy of the Sun

B
the magnetic field of the planets

C
the gravitational force of the Sun

D
the electrostatic force of the planets

Answers

I think b or d pls brainlest

Answer:C

Explanation:Its gravitational force of the sun

Analyze the punnett square R represents round seeds r represents wrinkled seeds


ratio of phenotypes:


ratio of genotypes


percent of offspring with round seeds:


percent of offspring with wrinkled seeds:



I need awner like a reason not a choice question

Answers

Note about the question:

You will find the Punnett square in the attached files

Answer:

ratio of phenotypes ⇒ 3:1 ratio of genotypes ⇒ 1:2:1 percent of offspring with round seeds ⇒ 75% percent of offspring with wrinkled seeds ⇒ 25%

Explanation:

Due to technical problems, you will find the complete explanation in the attached files

What happens when the Earthis plates pull away from each other? What happens when they push together? ​

Answers

Answer:

Two plates pushed together create a convergent fault. If one plate is oceanic and the other continental, the edge of the oceanic plate will be pushed down. When two plates move away from each other they create a divergent boundary. When this happens under oceans, new ocean floor is created.

hello please help i’ll give brainliest

Answers

Answer:

abiotic

Explanation:

abiotic - nonliving components of an ecosystem that can affect the living organisms.

Temperature is a nonliving component and it affects the organisms that live within a certain environment.

Therefore the answer is Abiotic

Reasons its not the other answers:

Biotic factors must be living things

Temperature is not a living thing therefore Biotic cannot be the answer

Same with living, temperature is not living therefore the answer cannot be living.

Temperature plays a huge role in an ecosystem therefore it is considered an important component and the answer cannot be unimportant.

need the answer quick please thanks

Answers

meiosis in all plants and animals that ....

trace the pathway of impulses through the nervous system in response to feeling rain on your skin?

Answers

Sensory neuron(s) then transmit information from the sensory receptor(s) to the Central Nervous System

Explanation:

These receptors are located all over the body but some types of receptors are in specific areas of the body (e.g. taste receptors in the mouth).

Sensory neuron(s) then transmit information from the sensory receptor(s) to the Central Nervous System (i.e. the brain and spinal cord, sometimes referred to in the abbreviated form: C.N.S.). This is happens because peripheral nerves all connect to the spinal cord via the network of nerves within the nervous system.

The information so received by the C.N.S. is further transmitted by relay neurone(s) with the C.N.S.

Hope THis Helps x

In very dry environments, sand can pile into large dunes.
The wind causes ripples on the surface of the sand.
Fossilized ripples of windblown sand
What do fossilized dunes such as the one shown in the photo tell scientists
about the environment?
A. It was once cold and wet.
B. It used to be a glacier.
C. It used to be an ocean.
OD. It was once dry and windy.

Answers

Answer:

D

Explanation:

the picture has ripples and is dry and cracked, hence the envirmoment having to be dry and windy.

Answer:

It was one dry and windy.

Explanation:

question 2
Two abiotic resources that affect an ecosystem are:

A. temperature and animals
B. plants and animals
C. water and bacteria
D. soil and water

Answers

B. Plants and animals
Answer: B

Explanation: because i am correct.

Identify the 2 main types of cetaceans and explain how they are classified.

Answers

Answer:

The Mysticetes (baleen whales); and the Odontocetes (toothed whales). Baleen whales are also called mysticetes, which means “mustached whale”.

A group of marine scientists introduced a species of fish into an artificial habitat and wanted to determine if it will grow well in the new environment. They recorded the population over several years and their data is plotted below. Analyze the data and formulate a conclusion. Does this species of fish do well in this habitat? Predict what will happen to the population over the next five years.

Answers

Answer:

It will be increased by a lot over the nect five years

Explanation:

Answer:

This species of fish don't do well in this habitat, we can see this because in 9 years the number of individuals went from 100 to 63, which is 37 individuals less. Over the next five years, the population will continue to decrease.

Which nitrogen bases (codon) in the mRNA code for the amino acid Valine?

Answers

Answer: GUU, GUC, GUA, GUG

Explanation:

What is a reason for peer reriew?

A: to maintain scientific standards

B:to allow anyone to submit research

C:to ensure that science remains elitist

Answers

thr answer is c sorry if am wrong

Explain how carbon cycles through the ecosystem in which you live.

PLEAASE HELP :((

Answers

Answer:Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned. The carbon cycle is nature's way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms.

Explanation:

A group of scientists studied the effects of exercise on insulin sensitivity in elderly women. The scientists measured the amount of insulin secreted in the saliva when given glucose. Measurements were taken at 0, 20, 40, and 70 minutes after the glucose was administered. The graph shows the data collected before and after a four-month exercise program was put into place

Which statement BEST analyzes the data shown in the graph?
A. Elderly women secrete more insulin the more they exercise.
B. Exercise decreases insulin sensitivity in elderly women.
C. Insulin sensitivity is at its highest after 50 minutes.
D. Insulin sensitivity increases as exercise decreases.

Answers

Answer:

B. Exercise decreases insulin sensitivity in elderly women.

Explanation:

I got the answer correct in a test.

Exercise decreases insulin sensitivity in elderly women.

What is Insulin?

Your muscle cells are better equipped to use any insulin that is present to take up glucose during and after exercise because their insulin sensitivity has risen.

Whether or not insulin is present, when your muscles contract during activity, your cells can absorb glucose and utilise it as fuel.

Depending on how long you exercise for, among other things, will determine how your physical activity affects your blood sugar levels.

Learn how your blood sugar changes as a result of activity. You can better understand the advantages of exercise by monitoring your blood sugar levels more frequently before and after exercise.

Therefore, Exercise decreases insulin sensitivity in elderly women.

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Which of the three components that plants need do we provide?

Answers

Answer:

Plants, like all living organisms, have basic needs: a source of nutrition (food), water, space in which to live, air, and optimal temperatures in order to grow and reproduce. For most plants, these needs are summarized as light, air, water, and nutrients (known by the acronym LAWN).

Is tick an insect? If yes, why? If no, why?​

Answers

Answer: Kind of

Explanation: Ticks aren't actually insects, they are arachnids – more closely related to spiders.

Are blue-green algae plants?
Blue-green algae are colored prokaryotes that can be
unicellular or can form colonies of cells, but they are not
truly multicellular. This algae species is autotrophic,
needs sunlight, and performs photosynthesis.
O yes, because they are not multicellular or eukaryotic
O yes, because they are autotrophic and need sunlight
O no, because they are autotrophic and need sunlight
O no, because they are not multicellular or eukaryotic

Answers

Yes, because they are autotrophic and need sunlight

Answer:

Explanation:

d

what are the dominant freshwater flora and fauna?
a) grass and insects
b) mangrove trees and fish
c) plants and amphibians
d) sawgrass and reptiles

Answers

C.plants and amphibians

Answer:

The correct answer is A I believe :)

Explanation:

Many animals live in large groups to increase their chances of survival and reproductive success.
Which statement provides evidence that living in groups is beneficial to its members?

A. Animals living in large groups tend to attract more predators.

B. Animals living in large groups tend to spread diseases more easily.

c. Animals living in large groups are able to hunt and take down larger prey.

D. Animals living in large groups tend to compete more for resources and mates.

Answers

Answer:

D. Animals living in large groups tend to compete more for resources and mates.

Very easy answer, I will give Brainliest! What is the name of this process? Click the picture above to view.​

Answers

Answer: Not exactly sure of the specific name of the process, but the picture shows how the sun provides healthy sunlight with the ozone absorbing some of the radiation

Explanation:

What forms of energy are there?

Answers

mechanical, kinetic, potential, gravitational, thermal, chemical, electrical, light, radiant, sound, and nuclear.

In some ways you are similar to your parents in others different. What do you think that is? OKEASE HELP

Answers

you are similar to your parents do you DNA in the way you look but different in the way you act your voice how long your hair is and how big or small you are
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